package com.mall.order.services;

import com.mall.order.OrderCoreService;
import com.mall.order.biz.TransOutboundInvoker;
import com.mall.order.biz.context.AbsTransHandlerContext;
import com.mall.order.biz.factory.OrderProcessPipelineFactory;
import com.mall.order.constant.OrderRetCode;


import com.mall.order.dal.entitys.OrderItem;
import com.mall.order.dal.entitys.Stock;
import com.mall.order.dal.persistence.OrderItemMapper;
import com.mall.order.dal.persistence.OrderMapper;
import com.mall.order.dal.persistence.OrderShippingMapper;
import com.mall.order.dal.persistence.StockMapper;
import com.mall.order.dto.*;
import com.mall.order.utils.ExceptionProcessorUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.dubbo.config.annotation.Service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import tk.mybatis.mapper.entity.Example;

import java.util.List;


/**
 *  ciggar
 * create-date: 2019/7/30-上午10:05
 */
@Slf4j
@Component
@Service
public class OrderCoreServiceImpl implements OrderCoreService {

	@Autowired
	OrderMapper orderMapper;

	@Autowired
	OrderItemMapper orderItemMapper;

	@Autowired
	OrderShippingMapper orderShippingMapper;

	@Autowired
	StockMapper stockMapper;

	@Autowired
    OrderProcessPipelineFactory orderProcessPipelineFactory;


	/**
	 * 创建订单的处理流程
	 *
	 * @param request
	 * @return
	 */
	@Override
	public CreateOrderResponse createOrder(CreateOrderRequest request) {
		CreateOrderResponse response = new CreateOrderResponse();
		try {
			//创建pipeline对象
			TransOutboundInvoker invoker = orderProcessPipelineFactory.build(request);

			//启动pipeline
			invoker.start(); //启动流程（pipeline来处理）

			//获取处理结果
			AbsTransHandlerContext context = invoker.getContext();

			//把处理结果转换为response
			response = (CreateOrderResponse) context.getConvert().convertCtx2Respond(context);
		} catch (Exception e) {
			log.error("OrderCoreServiceImpl.createOrder Occur Exception :" + e);
			ExceptionProcessorUtils.wrapperHandlerException(response, e);
		}
		return response;
	}


	@Override
	public CancelOrderResponse cancelOrderByOrderId(String orderId) {
		CancelOrderResponse response = new CancelOrderResponse();
		List<OrderItem> orderItems = orderItemMapper.queryByOrderId(orderId);
		//删除物流
		orderShippingMapper.deleteByPrimaryKey(orderId);
		//删除订单商品
		Example example = new Example(OrderItem.class);
		example.createCriteria().andEqualTo("orderId",orderId);
		orderItemMapper.deleteByExample(example);
		//删除订单
		int i = orderMapper.deleteByPrimaryKey(orderId);
		//还原库存
		for (OrderItem orderItem : orderItems) {
			Stock stock = new Stock();
			stock.setItemId(orderItem.getItemId());
			stock.setLockCount(-orderItem.getNum());
			stock.setStockCount((long)orderItem.getNum());
			stockMapper.updateStock(stock);
		}
		response.setCode(OrderRetCode.SUCCESS.getCode());
		response.setCode(OrderRetCode.SUCCESS.getMessage());
		return response;
	}

}
